They screwed up by never adding any actual legit wing players after that playoff season.
Keegan Murray has been the only actual wing they've had. He shouldn't be the starting PF.
They've also screwed up his development by constantly bringing in guards that need the ball. He's become a really good defender. Him and Keon Ellis are the only legit defenders they have.
They finally had a decent center in Val and they trade him for cap space to give Dennis Schroder a 3 year deal. Never should have gotten rid of Davion Mitchell either.
Went from having Hali, Fox, and Davion at the same time to having Dennis Schroder and year 18 Westbrook, who has arguably been their best player this season.
I can go on and on but what's the point?